<template>
  <Dialog :title="dialogTitle" v-model="dialogVisible">
    <el-form
      ref="formRef"
      :model="formData"
      :rules="formRules"
      label-width="100px"
      v-loading="formLoading"
    >
      <el-form-item label="班级名称" prop="name">
        <el-input v-model="formData.name" placeholder="请输入班级名称"/>
      </el-form-item>
      <el-form-item label="持有者" prop="userId" v-if="false">
        <el-input v-model="formData.userId" placeholder="请输入持有者"/>
      </el-form-item>
      <el-form-item label="成员ID" prop="memUserId">
        <el-input v-model="formData.memUserId" placeholder="请输入成员ID"/>
      </el-form-item>
      <el-form-item label="状态" prop="status">
        <el-radio-group v-model="formData.status">
          <el-radio
            v-for="dict in getStrDictOptions(DICT_TYPE.COMMON_STATUS)"
            :key="dict.value"
            :value="dict.value"
          >
            {{ dict.label }}
          </el-radio>
        </el-radio-group>
      </el-form-item>
      <el-form-item label="成员类型" prop="memType">
        <el-select v-model="formData.memType" placeholder="请选择成员类型">
          <el-option label="学生" value="student"/>
        </el-select>
      </el-form-item>
      <el-form-item label="加入方式" prop="source">
        <el-input v-model="formData.source" placeholder="请输入加入方式"/>
      </el-form-item>
    </el-form>
    <template #footer>
      <el-button @click="submitForm" type="primary" :disabled="formLoading">确 定</el-button>
      <el-button @click="dialogVisible = false">取 消</el-button>
    </template>
  </Dialog>
</template>
<script setup lang="ts">
import {UserClassApi} from '@/api/exam/userclass'
import {DICT_TYPE, getIntDictOptions, getStrDictOptions} from "@/utils/dict";

const {t} = useI18n() // 国际化
const message = useMessage() // 消息弹窗

const dialogVisible = ref(false) // 弹窗的是否展示
const dialogTitle = ref('') // 弹窗的标题
const formLoading = ref(false) // 表单的加载中：1）修改时的数据加载；2）提交的按钮禁用
const formType = ref('') // 表单的类型：create - 新增；update - 修改
const formData = ref({
  id: undefined,
  name: undefined,
  classId: undefined,
  userId: undefined,
  memUserId: undefined,
  status: undefined,
  memType: undefined,
  source: undefined
})
const formRules = reactive({
  name: [{required: true, message: '班级名称不能为空', trigger: 'blur'}],
  classId: [{required: true, message: '班级ID不能为空', trigger: 'blur'}],
  userId: [{required: true, message: '持有者不能为空', trigger: 'blur'}],
  memUserId: [{required: true, message: '成员ID不能为空', trigger: 'blur'}],
  status: [{required: true, message: '状态不能为空', trigger: 'blur'}],
  memType: [{required: true, message: '成员类型: 持有者;学生不能为空', trigger: 'change'}]
})
const formRef = ref() // 表单 Ref

/** 打开弹窗 */
const open = async (type: string, id?: number, classId: number) => {
  dialogVisible.value = true
  dialogTitle.value = t('action.' + type)
  formType.value = type
  resetForm()
  formData.value.classId = classId;
  // 修改时，设置数据
  if (id) {
    formLoading.value = true
    try {
      formData.value = await UserClassApi.getUserClassMem(id)
    } finally {
      formLoading.value = false
    }
  } else {
    formData.value.memType = 'student';
  }
  try {
    const userClass = await UserClassApi.getUserClass(classId);
    formData.value.userId = userClass.userId;
    formData.value.name = userClass.name;
  } finally {
    formLoading.value = false
  }

}
defineExpose({open}) // 提供 open 方法，用于打开弹窗

/** 提交表单 */
const emit = defineEmits(['success']) // 定义 success 事件，用于操作成功后的回调
const submitForm = async () => {
  // 校验表单
  await formRef.value.validate()
  // 提交请求
  formLoading.value = true
  try {
    const data = formData.value
    if (formType.value === 'create') {
      await UserClassApi.createUserClassMem(data)
      message.success(t('common.createSuccess'))
    } else {
      await UserClassApi.updateUserClassMem(data)
      message.success(t('common.updateSuccess'))
    }
    dialogVisible.value = false
    // 发送操作成功的事件
    emit('success')
  } finally {
    formLoading.value = false
  }
}

/** 重置表单 */
const resetForm = () => {
  formData.value = {
    id: undefined,
    name: undefined,
    classId: undefined,
    userId: undefined,
    memUserId: undefined,
    status: undefined,
    memType: undefined,
    source: undefined
  }
  formRef.value?.resetFields()
}
</script>
